Flowmaster Super 10 Series Mufflers Reviews

I have the 5.3 Silverado with magnaflow cats and 3 in piping. I have it dumped before the axle. 20 Inches of piping after the muffler with a turndown..sounds amazing especially cold start. Very deep and very mean

Flowmaster 50 Series HD Mufflers Reviews

The flowmaster 853558 is offset in and offset out was a pretty easy fit for my 2014 chevy silverado Hd. Plus being stainless,great sound, it should last. The exhaust is 3.5 " and didnt want to go any small hoping to help the gas burner breath easier,and to help with the gas mileage. Craig